World Bulletin / News Desk
"A military helicopter dropped several barrel bombs on Aleppo’s Al-Sukkari neighborhood, killing four people and injuring 11 others," the sources added.
One civil defense official based in Aleppo said that a building in the neighborhood had been "completely destroyed" while a civil defense team was still working to rescue the injured.
Barrel bombs are improvised explosive devices packed with shrapnel and explosive material. Usually dropped from Syrian army helicopters, the low-cost munitions are believed to have killed thousands of people since the conflict began.
"Syrian regime warplanes also dropped vacuum bombs on Aleppo's Mashhad, Al-Rashideen, and Al-Maadi districts," the official, who spoke anonymously due to security concerns, asserted.
Syria has been locked in a vicious civil war since early 2011, when the Assad regime cracked down on pro-democracy protests -- which had erupted as part of the "Arab Spring" uprisings -- with unexpected ferocity.
The Syrian Center for Policy Research, a Beirut-based NGO, has put the death toll from the six-year-old conflict at more than 470,000.